Medtronic, Inc.

T V Rao

William J Combs

Edwin G Duffin

Thomas M Nutzman

Robert C Samec

A pacemaker system adapted to deliver pacing pulses in the presence of fibrillation. The pacing pulses are delivered via large surface area electrodes of the type normally used to accomplish defibrillation or cardioversion using high voltage pulses. An extended pulse train is delivered in order to gradually entrain greater portions of heart tissue, until a sufficient percentage of tissue is entrained to interrupt fibrillation. The invention is believed most applicable to treatment of atrial fibrillation.

Method and apparatus for treatment of atrial fibrillation

A method of filling an electrochemical cell container having a penetrable, self-sealing septum.

Electrochemical cell construction and fill method

A method of leak testing hermetic enclosures having a penetrable, self-sealing septum communicating with the interior thereof. Test gas is introduced into the enclosure by means of a hypodermic needle inserted through the septum and then withdrawn. Subsequent monitoring of the enclosure for presence of any escaping test gas confirms if leakage is occurring.

Leak detection for hermetic enclosures

Electrochemical cell containers having a penetrable, self-sealing septum for filling.

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Coon Rapids, MN, United States of America

T V Rao